JPS58166448A - Generation system for pseudo-random number - Google Patents

Generation system for pseudo-random number

Info

Publication number
JPS58166448A
JPS58166448A JP57048683A JP4868382A JPS58166448A JP S58166448 A JPS58166448 A JP S58166448A JP 57048683 A JP57048683 A JP 57048683A JP 4868382 A JP4868382 A JP 4868382A JP S58166448 A JPS58166448 A JP S58166448A
Authority
JP
Japan
Prior art keywords
bit
bits
pseudo
1sec
ram3
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP57048683A
Other languages
Japanese (ja)
Inventor
Shinya Hasegawa
晋也 長谷川
Katsumi Mori
克巳 森
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP57048683A priority Critical patent/JPS58166448A/en
Publication of JPS58166448A publication Critical patent/JPS58166448A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/58—Random or pseudo-random number generators
    • G06F7/588—Random number generators, i.e. based on natural stochastic processes

Abstract

PURPOSE:To generate long-period pseudo-random numbers which have small deviation by radiation. CONSTITUTION:Alpha rays 2 radiated from radioactive element uranimum 1 of one millicurie are entered into one bit of a 64,000-bit RAM3 which has 30mm.<2> area and is 10cm away from the radio-active element uranium 1. When all bits of the RAM3 are set to ''0'' initially, only the bit where the alpha rays 2 are entered is set to ''1''. In 100+1sec, about one bit is set to ''1''. Since the alpha rays 2 are radiated equally in every direction, bits are set to ''1'' completely at random. In every 100+1sec, a decoder 4 detects addresses of ''1'' bits and outputs address numbers. All the bits of the RAM3 are set to ''0'' again to generate a pseudo-random number string 5 in time intervals of 100+1sec.

Description

【発明の詳細な説明】 本発明は、放射−を検出することにより擬似乱数を発生
させる方法に関する４のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for generating pseudorandom numbers by detecting radiation.

一般に、Ｉｌ偏乱数を発生させるには、会同法などによ
り、計算機を用い、演算を行なりて擬似乱数を発生させ
ている。Generally, in order to generate Il random numbers, pseudo-random numbers are generated by performing calculations using a computer, such as by using a computer method.

このように計算機を用い九演算による場合は、演算に用
いる初期値、係数の値によっては、周期性、偏りなどの
点で十分な乱数が得られなくなるという問題がある。In this way, when a calculator is used to perform nine calculations, there is a problem that, depending on the initial values and coefficient values used in the calculation, sufficient random numbers cannot be obtained in terms of periodicity, bias, etc.

本発明は前記問題点を解消するものて周期の長い、偏９
の小さい擬似乱数を発生させる方法を提供するものでＴ
ｏシ、放射性物質から出る放射線を半導体素子集積デバ
イスによシ検出し、放射線によ）、変化を生じた素子の
位置を検知することにより擬似乱数を発生するようにし
たことを特徴とするものでるる。The present invention solves the above-mentioned problems.
It provides a method to generate small pseudo-random numbers of T
(o) A device characterized in that radiation emitted from a radioactive substance is detected by a semiconductor element integrated device, and pseudo-random numbers are generated by detecting the position of the element that has changed (by the radiation). Out.

以下、本発明の実施伺を図面によって詳細に説明する。Hereinafter, implementation of the present invention will be explained in detail with reference to the drawings.

図は、本発明の一実施例を示す構成図で６る。Figure 6 is a configuration diagram showing one embodiment of the present invention.

すなわち、１イリキエーりの放射性元素９ラン１から放
射されたアルファ纏２を放射性元素ウラン１から１０ａ
１ｍ１１れ、面積を１０−とした４４０００ビツトのＲ
ＡＭ１０１ビツト中に進入させる。最初、全てのｂ人Ｍ
Ｍのビットｔ％０１に設定しておくと、アルファ線２０
進入し九ビットのみが％１１の状態になる。１００ナノ
秒の間にはおよそ１つのビットが１１１の状態になる。In other words, the alpha mass 2 emitted from the radioactive element 9 oran 1 in 1 liter is converted into the radioactive element uranium 1 to 10a.
44000 bits R with 1m11 area and 10-
Enter into AM101 bit. At first, all B people M
If bit t%01 of M is set, alpha rays 20
Only 9 bits enter the state of %11. Approximately one bit is in the 111 state during 100 nanoseconds.

アルファ纏２は等方的に放射される良め、どのビットが
％１１の状態になるかは全くランダムである。１００ナ
ノ秒ごとに、デコーダ４によＪ）、％１＃になり几ビッ
トのアドレスを検知ｔ、、ｏから４８９９９１でのアド
レス番号を出力する。几ＡＭ３の全ビットを再び％Ｏｌ
に設定して上記の動作をくり返すことにより、１００ナ
ノ秒ごとに０から６５９９９１での擬似乱数夕ｕ５を発
生する。The alpha band 2 is emitted isotropically, and which bit becomes the %11 state is completely random. Every 100 nanoseconds, the decoder 4 detects the address of the bit at %1# and outputs the address number 489991 from t, , o. %Ol all bits of 几AM3 again
By repeating the above operation with the setting set to , a pseudorandom number u5 ranging from 0 to 659991 is generated every 100 nanoseconds.

以上の説明において、説明を具体化するために放射性物
質、放射線検出デバイスを特定し九が、本発明はこれら
のものに限定されるものではない。In the above description, radioactive substances and radiation detection devices are specified in order to make the description concrete, but the present invention is not limited to these.

放射性物質としては、他に、例えばトリウム、フジラム
、ラドン、アクゾニウム、・ネプツニタ五なども使用で
き、放射線検出デバイスとしては、他に、例えばＣＣＤ
なども使用できる。Other radioactive substances that can be used include, for example, thorium, fujiram, radon, axonium, and neptunite, and as radiation detection devices, for example, CCD.
etc. can also be used.

以上のように、本発明は放射性物質から出る放射線によ
シ変化を生じた素子の位置に轟いて擬似乱数を発生する
ようにし九ので、実質上周期性ヤ偏よりがなくランダム
な擬似乱数を発生させることかで自る効果を有するもの
である。As described above, the present invention generates pseudo-random numbers by emitting radiation from a radioactive substance at the position of a changed element, thereby generating random pseudo-random numbers with virtually no periodicity bias. It has its own effects depending on how it is generated.

【図面の簡単な説明】 図は本発明の一実施例を示す構成図でるる。 図において、 １・・・放射性元素ウラン、２・・・アルファ線、轟・
・・４４０００ビツトのＲＡＭ、４・・・デコーダ、Ｓ
・・・擬似乱数列。 特許出願人　日本電気株式会社BRIEF DESCRIPTION OF THE DRAWINGS The figure is a configuration diagram showing an embodiment of the present invention. In the diagram, 1...Radioactive element uranium, 2...Alpha rays, Todoroki.
...44000 bits RAM, 4...decoder, S
...Pseudo-random number sequence. Patent applicant: NEC Corporation

Claims (1)

【特許請求の範囲】[Claims] （υ　放射性物質から出る放射線を中導体素子集積デバ
イスにより検出し、放射線により変化を生じた素子の位
置を検知することにより擬似乱数を発生させることを特
徴とする擬似乱数発生方法。(υ A pseudorandom number generation method characterized by detecting radiation emitted from a radioactive substance using a medium conductor element integrated device and generating pseudorandom numbers by detecting the position of the element that has changed due to the radiation.
JP57048683A 1982-03-26 1982-03-26 Generation system for pseudo-random number Pending JPS58166448A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57048683A JPS58166448A (en) 1982-03-26 1982-03-26 Generation system for pseudo-random number

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57048683A JPS58166448A (en) 1982-03-26 1982-03-26 Generation system for pseudo-random number

Publications (1)

Publication Number Publication Date
JPS58166448A true JPS58166448A (en) 1983-10-01

Family

ID=12810114

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57048683A Pending JPS58166448A (en) 1982-03-26 1982-03-26 Generation system for pseudo-random number

Country Status (1)

Country Link
JP (1) JPS58166448A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998006175A1 (en) * 1996-08-06 1998-02-12 Amersham International Plc Method of and apparatus for generating random numbers
JP2006050577A (en) * 2004-06-30 2006-02-16 Tsuyusaki Norihei Random pulse generation source, method, program and semiconductor device for generating random number and/or probability using the source

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998006175A1 (en) * 1996-08-06 1998-02-12 Amersham International Plc Method of and apparatus for generating random numbers
EP0828349A1 (en) * 1996-08-06 1998-03-11 AMERSHAM INTERNATIONAL plc Method of and apparatus for generating random numbers
US6415309B1 (en) 1996-08-06 2002-07-02 Mark G. Shilton Method of and apparatus for generating random numbers
JP2006050577A (en) * 2004-06-30 2006-02-16 Tsuyusaki Norihei Random pulse generation source, method, program and semiconductor device for generating random number and/or probability using the source

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